Respiration of Cucumber Fruits Associated with Physiological Injury at Chilling Temperatures.

Physiological Studies of Chilling Injury in Citrus Fruits

“…Stimulation above that of the same material held at 200 C persisted from 4 to 9 days. The sustained stimulatory effect found here on cucumber fruits is in agreement with that of a previous report (8) transfer, and the peak rates found in the present study were therefore not observed. Other products such as avocados, bananas, and tomatoes were observed, but the data are difficult to interpret because the climacteric rise in respiration characteristic of these fruits was differentially hastened or suppressed by the different holding temperatures and became integrated with the effect of temperature on COO production.…”

“…The respiratory response has been used as a criterion of the physiological effects of chilling injury. Stimulation of the respiratory rate at chilling temperatures has been reported for cucumbers (8) and for swveet potatoes (12). The influence of a previous exposure to chilling temperatures on the respiratory rate and trends at nonchilling temperatures has been investigated (1,4,5,6,8,10,17,18).…”

“…Stimulation of the respiratory rate at chilling temperatures has been reported for cucumbers (8) and for swveet potatoes (12). The influence of a previous exposure to chilling temperatures on the respiratory rate and trends at nonchilling temperatures has been investigated (1,4,5,6,8,10,17,18). Most, but not all of these studies showed the initial rates of CO9 evolution, after transfer to the warmer temperature, rising to a maximum well above the value normally expecte(d and then slowly falling back to the expected value.…”

“…Most, but not all of these studies showed the initial rates of CO9 evolution, after transfer to the warmer temperature, rising to a maximum well above the value normally expecte(d and then slowly falling back to the expected value. This stimulation in CO9 output, with two exceptions (8,17) has not been associated with chilling injury sustained by the material. The methodls for determining CO, pro-(luction available to these investigators required sampling and/or equilibrium periods of 6 to 48 hours.…”

“…aspects of this phenomenon have received limited attention (8,11,12,13). The respiratory response has been used as a criterion of the physiological effects of chilling injury.…”